JP4214983B2 - Bathroom anomaly detection system - Google Patents

Bathroom anomaly detection system Download PDF

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JP4214983B2
JP4214983B2 JP2004303450A JP2004303450A JP4214983B2 JP 4214983 B2 JP4214983 B2 JP 4214983B2 JP 2004303450 A JP2004303450 A JP 2004303450A JP 2004303450 A JP2004303450 A JP 2004303450A JP 4214983 B2 JP4214983 B2 JP 4214983B2
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bathroom
human body
detection sensor
body detection
detects
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JP2006113028A (en
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崇 佐久間
真治 足立
信諭 門脇
敏裕 田中
達司 大野
大樹 松崎
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

本発明は、浴室における人体の異常を検知する浴室異常検知システムの改良に関する。   The present invention relates to an improvement of a bathroom abnormality detection system that detects an abnormality of a human body in a bathroom.

近時、高齢化社会に相まって、独居老人が増えてきており、浴室、脱衣室内で倒れたりした場合、発見が困難となっている。
こうした社会情勢に合わせて、下記特許文献１に示すような浴室異常検知システムが開発され、浴室で倒れたり、意識を失った場合の早期発見に努めている。このシステムは、浴室に設けた人体検知センサが浴室内の人の体動を検知している間は異常なしと判定し、人の体動が一定時間の間なくなった場合には、異常発生の旨を報知して、近隣の人や予め登録された通報先を呼び出すようにしたものである。
特開２００４−５３４６４号公報 Recently, the number of elderly people living alone has increased in conjunction with an aging society, and it has become difficult to detect if they fall down in the bathroom or undressing room.
In accordance with such social circumstances, a bathroom abnormality detection system as shown in Patent Document 1 below has been developed, and efforts are being made for early detection when a person falls down or loses consciousness in the bathroom. This system determines that there is no abnormality while the human body detection sensor installed in the bathroom detects the movement of a person in the bathroom. This is notified and a nearby person or a pre-registered report destination is called.
JP 2004-53464 A

ところが、上記した従来システムでは、一定時間の間、人の体動を検知しない場合に異常と判定するため、使用者が浴室から退出しているにも関わらず、人体検知センサが一定時間体動を検知しなくなることにより、異常判定がなされて誤報が出力されてしまうことが考えられる。
本発明は、このような事情を考慮して提案されるものであり、使用者が、浴室から退出したか否かを正確に判定することにより、異常発生の誤報を極力防止することができる浴室異常検知システムを提供することを目的とする。 However, in the above-described conventional system, since a human body movement is not detected for a certain period of time, it is determined that there is an abnormality, so the human body detection sensor does not move for a certain period of time even though the user has left the bathroom. It is conceivable that an abnormality determination is made and false information is output due to the fact that no error is detected.
The present invention is proposed in view of such circumstances, and a bathroom that can prevent false reports of abnormal occurrence as much as possible by accurately determining whether or not the user has left the bathroom. An object is to provide an anomaly detection system.

上記目的を達成するために、本発明の請求項１では、浴室内に設けられ、浴室内作業領域と浴室出入口とを検知エリアとして該検知エリアにおける人の体動を検知する第１の人体検知センサと、第１の人体検知センサで所定時間継続して体動を検知しない場合に浴室の使用者に異常が生じたと判断して報知する報知手段と、脱衣室側に設けられ、浴室出入口を検知エリアとして該検知エリアの体動を検知する第２の人体検知センサと、脱衣室側に設けられ、脱衣領域を検知エリアとして該検知エリアの体動を検知する第３の人体検知センサと、第１〜第３の人体検知センサでの体動の検知結果に基づいて使用者が浴室から退出したか否かを判断する退出判断手段と、退出判断手段で使用者が浴室から退出したと判断した場合に、報知手段での報知を行わないようにする報知解除手段とを備え、退出判断手段は、第１の人体検知センサと第２の人体検知センサとで同時に体動を検知した後、第１の所定時間内に第３の人体検知センサで体動を検知し、かつ、第３の人体検知センサでの体動の検知から第２の所定時間が経過するまでの間に第１の人体検知センサで体動を検知しない場合に、使用者が浴室から退出したと判断することを特徴とする。   In order to achieve the above object, according to claim 1 of the present invention, a first human body detection is provided in a bathroom and detects a human movement in the detection area using a work area in the bathroom and a bathroom entrance as a detection area. A sensor, a notifying means for notifying the user of the bathroom that an abnormality has occurred when the body movement is not detected for a predetermined time by the first human body detection sensor, and provided on the dressing room side, the bathroom entrance / exit A second human body detection sensor that detects body movement in the detection area as a detection area; a third human body detection sensor that is provided on the undressing room side and detects body movement in the detection area using the undressing area as a detection area; Based on the detection results of the body movements by the first to third human body detection sensors, it is determined whether or not the user has left the bathroom, and the exit determination means determines that the user has left the bathroom. In the case of the notification means And a notification canceling means for preventing notification, and the exit determination means detects the body movement at the same time by the first human body detection sensor and the second human body detection sensor, and then detects the movement within the first predetermined time. The body motion is detected by the third human body detection sensor, and the body motion is detected by the first human body detection sensor until the second predetermined time elapses after the body motion is detected by the third human body detection sensor. If not, it is determined that the user has left the bathroom.

本発明の請求項１によれば、退出判断手段が使用者の浴室からの退出を判断した場合には、報知手段の作動を禁止することで、第１の人体検知センサが、浴室内領域と浴室出入口との領域で所定時間継続して人体の体動を検知しない場合でも、報知手段による警報を発生しないようにできるので、使用者が浴室から退出したにも関わらず、浴室内での体動がないとして誤報をしてしまうということが未然に防止できる。
また、退出判断手段は、第１、２の人体検知センサが浴室出入口の体動を検知した後、第１の所定時間内に、第３の人体検知センサが脱衣領域の体動を検知し、かつ、それから第２の所定時間が経過しない間に第１の人体検知センサが浴室出入口の体動を検知しない場合に、使用者が浴室から退出したと判断するので、使用者が浴室から退出したことを正確に判定できる。 According to the first aspect of the present invention, when the exit determination means determines that the user has left the bathroom, the first human body detection sensor is configured as a bathroom area by prohibiting the operation of the notification means. Even if the movement of the human body is not detected for a certain period of time in the area with the bathroom entrance / exit, it is possible to prevent an alarm from being generated by the notification means, so that the body in the bathroom can be used even though the user has left the bathroom. It can be prevented in advance that false alarms will occur if there is no movement.
Further, the exit determination means detects the body movement of the undressing area within the first predetermined time after the first and second human body detection sensors detect the body movement of the bathroom entrance and exit, And when the first human body detection sensor does not detect body movement at the entrance / exit of the bathroom while the second predetermined time has not elapsed, the user judges that the user has left the bathroom, so the user has left the bathroom. Can be determined accurately.

以下に、本発明の実施の形態について説明する。   Embodiments of the present invention will be described below.

図１は、本発明システムの要部構成の一例を示す図である。
このシステムは、パッジブセンサで構成される第１〜第３の人体検知センサ３Ａ〜３Ｃ（設置場所、監視エリアは後述する）に、コントローラ本体１を接続して構成されている。また、コントローラ１には、通信ネットワークＮを通じ、予め登録された通報先２に異常通報するようにしている。
コントローラ本体１は、マイコン、タイマ部１０Ａで構成された退出判断手段１０と、スピーカＳＰを有した報知手段を構成する警報回路１１と、予め通報先２が登録され、通信ネットワークＮを通じて異常通報をする移報出力部１２と、報知解除手段１３とを備え、報知解除部１３では、退出判断手段１０が、後述するアルゴリズムに従って人の浴室からの退出を判定したときには警報回路１１の動作を禁止する構成となっている。
第１〜第３の人体検知センサ３Ａ〜３Ｃの設置場所と監視エリアとは、図２に示すようになっている。
すなわち、第１の人体検知センサ３Ａは、浴室２０内に設けられ、浴室における人の体動を検知をする。
図２の実施例では、第１の人体検知センサ３Ａは、内部に２つの赤外線検知素子を備え、それぞれの検知素子で浴室出入口Ｄ１を含む監視エリアＡ１と、脱衣室出入口Ｄ２を含む浴室内領域を含む監視エリアＡ２とを監視領域としているが、監視エリアＡ１，Ａ２を含む１つの監視エリアを１つの赤外線検知素子で検出する構成にしてもよい。
一方、第２、第３の人体検知センサ３Ｂ，３Ｃのそれぞれは、脱衣室３０に設けられ、内部に１つの赤外線検知素子を備えており、それぞれの検知素子が、浴室出入口Ｄ１を含む監視エリアＡ３、脱衣領域を含む監視エリアＡ４を監視領域としている。 FIG. 1 is a diagram showing an example of a main configuration of the system of the present invention.
This system is configured by connecting the controller body 1 to first to third human body detection sensors 3A to 3C (installation locations and monitoring areas will be described later) constituted by paddle sensors. In addition, the controller 1 is notified of an abnormality via a communication network N to a pre-registered report destination 2.
The controller body 1 has an exit determination means 10 composed of a microcomputer and a timer unit 10A, an alarm circuit 11 that constitutes a notification means having a speaker SP, and a report destination 2 are registered in advance. The notification output unit 12 and the notification release unit 13 prohibit the operation of the alarm circuit 11 when the exit determination unit 10 determines that the person has left the bathroom according to an algorithm described later. It has a configuration.
The installation locations and monitoring areas of the first to third human body detection sensors 3A to 3C are as shown in FIG.
That is, the first human body detection sensor 3 </ b> A is provided in the bathroom 20 and detects human movements in the bathroom.
In the embodiment of FIG. 2, the first human body detection sensor 3 </ b> A includes two infrared detection elements therein, and each of the detection elements includes a monitoring area A <b> 1 including a bathroom entrance D <b> 1, and a bathroom interior area including a dressing room entrance D <b> 2. The monitoring area A2 including the monitoring area A2 is used as the monitoring area, but one monitoring area including the monitoring areas A1 and A2 may be detected by one infrared detection element.
On the other hand, each of the second and third human body detection sensors 3B and 3C is provided in the dressing room 30, and includes one infrared detection element therein, and each detection element includes a bathroom entrance D1. A3, the monitoring area A4 including the undressing area is the monitoring area.

図３のステップ１００〜１１３は、退出判断手段１０によって実行されるフローチャートを示している。なお、このフローチャートでは、第１〜第３の人体検知センサは、センサ３Ａ〜３Ｃとして示している。
第１の人体検知センサ３Ａが体動を検知し、更に第２の人体検知センサ３Ｂが、浴室出入口Ｄ１での体動を検知したときには、タイマ部１０Ａを作動させる。
そして、時間ｔ１が経過するまでに第３の人体検知センサ３Ｃが、脱衣室３０の脱衣領域Ａ４内の体動を検知した場合には、タイマ１０Ａをリセットし、再度タイマ１０Ａを起動させ、時間ｔ２が経過するまでに第１の人体検知センサ３Ａが浴室２０内での体動を検知しない場合、使用者が浴室２０より外に退出したと判定する。 Steps 100 to 113 in FIG. 3 show a flowchart executed by the exit determination means 10. In the flowchart, the first to third human body detection sensors are shown as sensors 3A to 3C.
When the first human body detection sensor 3A detects body movement and the second human body detection sensor 3B detects body movement at the bathroom entrance D1, the timer unit 10A is activated.
When the third human body detection sensor 3C detects body movement in the undressing area A4 of the undressing room 30 before the time t1 elapses, the timer 10A is reset, the timer 10A is started again, and the time If the first human body detection sensor 3 </ b> A does not detect body movement in the bathroom 20 before t <b> 2 elapses, it is determined that the user has left the bathroom 20.

そして、第１、第２の人体検知センサ３Ａ，３Ｂにより浴室出入口Ｄ１の体動を検知してから、時間ｔ１が経過するまでの間に、第３の人体検知センサ３Ｃが体動を検知せずに、再度第１の人体検知センサ３Ａが浴室２０の体動を検知した場合には、使用者が浴室から退出していないと判断をして、ステップ１０１の処理に移行する。
一方、第１の人体検知センサ３Ａが浴室領域Ａ１、Ａ２あるいは浴室出入口Ｄ１の体動を検知してから、時間ｔｘが経過するまでの間、第１の人体検知センサ３Ａが体動を一切検知しない場合には、人が浴室２０内で倒れている可能性が高いので警報回路１１により警報を出力する。ここに、ｔｘは浴室内での体動を監視する時間で、前述した時間ｔ１と同じであってもよい。
また、このフローチャートでは、第１の人体検知センサ３Ａ、第２の人体検知センサ３Ｂにより浴室出入口Ｄ１の体動を検知してから、第３の人体検知センサ３Ｃが脱衣領域Ａ４の体動を検知せずに時間ｔ１が経過した場合も人が倒れたものと判断して警報を出力させている。 The third human body detection sensor 3C detects the body movement after the time t1 elapses after the body movement of the bathroom entrance D1 is detected by the first and second human body detection sensors 3A and 3B. If the first human body detection sensor 3 </ b> A again detects body movement in the bathroom 20, it is determined that the user has not left the bathroom, and the process proceeds to step 101.
On the other hand, the first human body detection sensor 3A detects any body movement until the time tx elapses after the first human body detection sensor 3A detects the body movement of the bathroom areas A1, A2 or the bathroom entrance D1. If not, the alarm circuit 11 outputs an alarm because there is a high possibility that a person has fallen in the bathroom 20. Here, tx is a time for monitoring body movements in the bathroom, and may be the same as the time t1 described above.
In this flowchart, the first human body detection sensor 3A and the second human body detection sensor 3B detect the body movement of the bathroom entrance D1, and then the third human body detection sensor 3C detects the body movement of the undressing area A4. Even when the time t1 has passed without the alarm, it is determined that the person has fallen and an alarm is output.

なお、この実施例では、３つの人体検知センサ３Ａ〜３Ｃを設けているが、これは一例に過ぎず、最低限、浴室出入口Ｄ１の体動を浴室側と脱衣室側の双方から監視するとともに、脱衣室の脱衣領域Ａ４を監視できる構成であればよい。   In this embodiment, the three human body detection sensors 3A to 3C are provided. However, this is only an example, and at least, the body movement of the bathroom entrance D1 is monitored from both the bathroom side and the dressing room side. Any configuration capable of monitoring the undressing area A4 of the dressing room may be used.

図４は、図３に示した退出判断処理を時系列的に示すタイムチャートである。すなわち、第１の人体検知センサ３Ａが体動検知をし、その検知をマイコン１０が認識した後、更に第２の人体検知センサ３Ｂが体動検知すると時間ｔ１の計測が開始される。なお、Δｔは、第１、第２の人体検知センサ３Ａ，３Ｂが検知を確定するための遅延時間である。
そして、時間ｔ１の間では、使用者は、浴室出入口Ｄ１から脱衣領域Ａ４へと移動していると考えられる。そして、脱衣領域Ａ４に移動がすむと、浴室出入口Ｄ１を監視する第１の人体検知センサ３Ａは体動を検知しなくなる一方、第３の人体検知センサ３Ｃが体動を検知するようになる。
その後は再度、浴室２０に戻らない限り、使用者は脱衣室３０内でのみ移動すると考えられるため、第２、第３の人体検知センサ３Ｂ、３Ｃのみが体動を検知し続けるということになるが、使用者が浴室２０より完全に退出した場合には、第１の人体検知センサ３Ａは全く体動を検知することがないので、このような状態が時間ｔ２の間継続したときには、使用者が浴室２０から退出したと判断する。 FIG. 4 is a time chart showing the exit determination process shown in FIG. 3 in time series. That is, after the first human body detection sensor 3A detects body movement and the microcomputer 10 recognizes the detection, the measurement of time t1 is started when the second human body detection sensor 3B further detects body movement. Note that Δt is a delay time for the first and second human body detection sensors 3A and 3B to confirm detection.
And during time t1, it is thought that the user is moving from bathroom entrance D1 to undressing area A4. When the movement to the undressing area A4 is completed, the first human body detection sensor 3A that monitors the bathroom entrance D1 does not detect body movement, while the third human body detection sensor 3C detects body movement.
After that, unless the user returns to the bathroom 20 again, it is considered that the user moves only in the dressing room 30, so that only the second and third human body detection sensors 3B and 3C continue to detect the body movement. However, when the user has completely left the bathroom 20, the first human body detection sensor 3A does not detect any body movement. Therefore, when such a state continues for the time t2, the user Determines that he has left the bathroom 20.

図５は、脱衣室３０内における第２、第３の人体検知センサの設置場所と、監視エリアとを説明する図である。
この例では、第２、第３の人体検知センサ３Ｂ、３Ｃは、浴室出入口Ｄ１の横壁（床面より１ｍ程度の高さ）に設置された、１つのセンサ装置４０の内部に内蔵されており、それぞれのセンサ３Ｂ、３Ｃは浴室出入口Ｄ１の直近を検知する方向（監視エリアＡ３）、脱衣室３０の中央付近を検知する方向（監視エリアＡ４）を監視領域としており、このため、人の移動に準じて、第２、第３の人体検知センサ３Ｂ、３Ｃが順番に体動を検知できる。
また、それぞれの監視領域Ａ３，Ａ４は、床面に対して、水平方向かつ床面より１ｍ程度の高さを有しているので、子供のように、身長の小さな使用者の体動も確実に検知できる。 FIG. 5 is a diagram for explaining the installation locations and monitoring areas of the second and third human body detection sensors in the dressing room 30.
In this example, the second and third human body detection sensors 3B and 3C are built in one sensor device 40 installed on the side wall of the bathroom entrance D1 (about 1 m above the floor). Each of the sensors 3B and 3C has a monitoring area in which the direction of detecting the immediate vicinity of the bathroom entrance D1 (monitoring area A3) and the direction in which the vicinity of the center of the dressing room 30 is detected (monitoring area A4). The second and third human body detection sensors 3B and 3C can detect the body movement in order.
In addition, each of the monitoring areas A3 and A4 has a horizontal direction with respect to the floor surface and a height of about 1 m from the floor surface. Can be detected.

図６は、壁面埋込設置型の人体検知センサの一例を示している。
本体部４０の内部に、第２、第３の人体検知センサ３Ｂ，３Ｃに対応して、２つの検知領域を規定する検知素子４１，４２を設けている。第２の人体検知センサ３Ｂに対応した検知素子４１は、床面に対して水平方向、かつ、脱衣室３０の中央付近方向に向ける一方、第３の人体検知センサ３Ｃに対応させた検知素子４２を床面に対して水平方向、かつ、浴室出入口Ｄ１方向に向けている。なお、検知素子レンズ４１，４２は、その方向が、水平方向、垂直方向、双方調整可能である。
また、以上のような第２、第３の人体検知センサ３Ｂ，３Ｃを脱衣室３０に設ける場合、浴室出入口Ｄ１の横壁に設置場所として余裕がない場合には、図７に示すように、床面より１ｍ程度の高さを持たせた上で側壁に設置することもできる。更に、図８，９のそれぞれに示すように天井あるいは上壁に取り付けることもできる。 FIG. 6 shows an example of a human body detection sensor embedded in a wall surface.
In the main body 40, detection elements 41 and 42 that define two detection areas are provided corresponding to the second and third human body detection sensors 3B and 3C. The detection element 41 corresponding to the second human body detection sensor 3B is oriented in the horizontal direction with respect to the floor surface and in the vicinity of the center of the dressing room 30, while the detection element 42 corresponding to the third human body detection sensor 3C. Is directed horizontally with respect to the floor and in the direction of the bathroom entrance D1. The detection element lenses 41 and 42 can be adjusted in the horizontal direction and the vertical direction.
In addition, when the second and third human body detection sensors 3B and 3C as described above are provided in the dressing room 30, when there is no room for installation on the side wall of the bathroom entrance D1, as shown in FIG. It can also be installed on the side wall after having a height of about 1 m from the surface. Furthermore, as shown in each of FIGS. 8 and 9, it can be attached to a ceiling or an upper wall.

本発明システムの要部構成の一例を示す図The figure which shows an example of the principal part structure of this invention system 第１〜第３の人体検知センサの設置場所と監視エリアとを示す図The figure which shows the installation place and monitoring area of a 1st-3rd human body detection sensor 退出判断処理について示すフローチャートFlow chart showing exit determination processing 退出判断処理について示すタイムチャートTime chart showing the exit determination process 第２、第３の人体検知センサの設置態様を示す図The figure which shows the installation aspect of a 2nd, 3rd human body detection sensor 壁面設置型の人体検知センサの構造を示す図Diagram showing the structure of a wall-mounted human detection sensor 第２、第３の人体検知センサの設置態様を示す他例図The other example figure which shows the installation aspect of a 2nd, 3rd human body detection sensor 第２、第３の人体検知センサの設置態様を示す他例図The other example figure which shows the installation aspect of a 2nd, 3rd human body detection sensor 第２、第３の人体検知センサの設置態様を示す他例図The other example figure which shows the installation aspect of a 2nd, 3rd human body detection sensor

符号の説明Explanation of symbols

１０ マイコン
１１ 警報回路
１２ 移報出力部
１３ 報知解除部
３Ａ〜３Ｃ 第１〜第３の人体検知センサ
２ 通報先
Ａ１〜Ａ４ 監視エリア
Ｄ１ 浴室出入口
Ｄ２ 脱衣室出入口 DESCRIPTION OF SYMBOLS 10 Microcomputer 11 Alarm circuit 12 Transfer output part 13 Notification cancellation part 3A-3C 1st-3rd human body detection sensor 2 Report destination A1-A4 Monitoring area D1 Bathroom entrance D2 Dressing room entrance

Claims (1)

浴室内に設けられ、浴室内領域と浴室出入口とを検知エリアとして該検知エリアにおける人の体動を検知する第１の人体検知センサと、
第１の人体検知センサで所定時間継続して体動を検知しない場合に浴室の使用者に異常が生じたと判断して報知する報知手段と、
脱衣室側に設けられ、浴室出入口を検知エリアとして該検知エリアの体動を検知する第２の人体検知センサと、
脱衣室側に設けられ、脱衣領域を検知エリアとして該検知エリアの体動を検知する第３の人体検知センサと、
上記第１〜第３の人体検知センサでの体動の検知結果に基づいて使用者が浴室から退出したか否かを判断する退出判断手段と、
退出判断手段で使用者が浴室から退出したと判断した場合に、上記報知手段での報知を行わないようにする報知解除手段とを備え、
上記退出判断手段は、第１の人体検知センサと第２の人体検知センサとで同時に体動を検知した後、第１の所定時間内に第３の人体検知センサで体動を検知し、かつ、第３の人体検知センサでの体動の検知から第２の所定時間は経過するまでの間に第１の人体検知センサで体動を検知しない場合に、使用者が浴室から退出したと判断することを特徴とする浴室異常検知システム。 A first human body detection sensor that is provided in the bathroom and detects a human body movement in the detection area using the bathroom area and the bathroom entrance and exit as a detection area;
Informing means for notifying the user of the bathroom that an abnormality has occurred when the first human body detecting sensor does not detect body movement continuously for a predetermined time; and
A second human body detection sensor which is provided on the dressing room side and detects body movement in the detection area with the bathroom entrance as a detection area;
A third human body detection sensor which is provided on the undressing room side and detects body movement of the detection area as a detection area;
An exit determination means for determining whether or not the user has exited the bathroom based on the detection results of body movements by the first to third human body detection sensors;
When it is determined that the user has left the bathroom by the exit determination means, the information cancellation means for not performing the notification by the notification means,
The exit determination means detects the body movement by the third human body detection sensor within the first predetermined time after detecting the body movement simultaneously by the first human body detection sensor and the second human body detection sensor, and If the body motion is not detected by the first human body detection sensor until the second predetermined time elapses after the body motion is detected by the third human body detection sensor, it is determined that the user has left the bathroom. The bathroom abnormality detection system characterized by doing.
JP2004303450A 2004-10-18 2004-10-18 Bathroom anomaly detection system Expired - Fee Related JP4214983B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102750803A (en) * 2012-07-16 2012-10-24 深圳市富晶科技有限公司 Fall alarm, fall alarm detector and fall alarm detecting method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016218773A (en) * 2015-05-21 2016-12-22 株式会社アイトシステム Bathroom emergency situation detection system
JP7550563B2 (en) 2020-07-30 2024-09-13 リンナイ株式会社 Bathing Information Notification System

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102750803A (en) * 2012-07-16 2012-10-24 深圳市富晶科技有限公司 Fall alarm, fall alarm detector and fall alarm detecting method

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